From: Harald Welte Date: Tue, 24 Nov 2009 15:53:00 +0000 (+0100) Subject: [CPUFREQ] Enable ACPI PDC handshake for VIA/Centaur CPUs X-Git-Tag: v2.6.32~49^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d77b81974521c82fa6fda38dfff1b491dcc62a32;p=pandora-kernel.git [CPUFREQ] Enable ACPI PDC handshake for VIA/Centaur CPUs In commit 0de51088e6a82bc8413d3ca9e28bbca2788b5b53, we introduced the use of acpi-cpufreq on VIA/Centaur CPU's by removing a vendor check for VENDOR_INTEL. However, as it turns out, at least the Nano CPU's also need the PDC (processor driver capabilities) handshake in order to activate the methods required for acpi-cpufreq. Since arch_acpi_processor_init_pdc() contains another vendor check for Intel, the PDC is not initialized on VIA CPU's. The resulting behavior of a current mainline kernel on such systems is: acpi-cpufreq loads and it indicates CPU frequency changes. However, the CPU stays at a single frequency This trivial patch ensures that init_intel_pdc() is called on Intel and VIA/Centaur CPU's alike. Signed-off-by: Harald Welte Signed-off-by: Dave Jones --- Reading git-diff-tree failed